Test Tube black filled icon
Upright test tube outline with a rolled rim and a wavy liquid level line
About the Test Tube black filled icon
A round-bottomed test tube stands upright with a thick rolled rim across the top and a wavy line partway down marking the surface of the liquid inside. The full lower half reads as a sample ready for analysis. Use it on lab service pages, chemistry course material, diagnostics dashboards, medical testing forms and science infographics.
Straight parallel walls and the curved base keep the shape calm, while the wave line supplies the only movement and sets the fill level. It pairs with flask, microscope and pipette icons. Place it beside a beaker at equal height for a balanced lab row.
This is the solid black filled version of the test tube icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
Get it free as an SVG vector or transparent PNG (16-512px), copy the SVG code, or restyle it in the free online editor — recolor any part, add gold, neon or gradient effects, animate it, or export EPS, PDF and DXF.
Free for personal and commercial use with attribution.
